News tagged with friction
Washington state moves to ban copper in brake pads
(AP) -- When a driver hits the brakes, friction releases copper shavings that fall onto the road and are eventually washed into rivers, where environmentalists say the metal could pose a hazard to marine life - especially ...
Apr 12, 2010 |
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Nanotechnologists reveal the frictional characteristics of atomically thin sheets (w/ Video)
A team of nanotechnology researchers from the University of Pennsylvania and Columbia University has used friction force microscopy to determine the nanoscale frictional characteristics of four atomically-thin ...
Apr 01, 2010 |
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All may look smooth, but there are 'bumps' along the way: Scientists describe how friction works
Friction in human relations is all too obvious and prevalent, but friction in physics has had a "secret life" of its own that has now been revealed by scientists at the Hebrew University of Jerusalem.
Mar 08, 2010 |
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How submarines, jets inspire Olympic gold dreams
Submarines and fighter jets are playing their part in the quest for Winter Olympics gold as competitors search for that crucial, extra edge.
Technology / Hi Tech & Innovation
Feb 17, 2010 |
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Frictionless supersolid a step closer
Superfluid mixtures of atoms can boil and freeze at ultra-low temperatures. This freezing can result in the formation of supersolids of atoms that can flow alongside each other without friction, but are still set in a fixed ...
Feb 14, 2010 |
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In search of speed
In ski sports, it's often only a second that separates the winners from the losers. Using equipment made of the right materials can therefore make all the difference. Researchers are simulating the gliding ...
Jan 08, 2010 |
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How people work... and the mystery of your fingerprints
Why do we chew our food? Research has shown that it is not, as has long been presumed, to make chunks of food small enough to swallow without choking. Biomechanics, who have modelled the cohesive strength ...
Jan 06, 2010 |
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Fault weaknesses, the center cannot hold for some geologic faults
Some geologic faults that appear strong and stable, slip and slide like weak faults. Now an international team of researchers has laboratory evidence showing why some faults that "should not" slip are weaker ...
Space & Earth / Earth Sciences
Dec 16, 2009 |
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Metamaterials could reduce friction in nanomachines
(PhysOrg.com) -- Nanoscale machines expected to have wide application in industry, energy, medicine and other fields may someday operate far more efficiently thanks to important theoretical discoveries concerning the manipulation ...
Nanotechnology / Nanomaterials
Dec 07, 2009 |
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NASA Uses Twin Processes to Develop New Tank Dome Technology
(PhysOrg.com) -- NASA has partnered with Lockheed Martin Space Systems in Denver, Colo., and MT Aerospace in Augsburg, Germany, to successfully manufacture the first full-scale friction stir welded and spun ...
Space & Earth / Space Exploration
Dec 02, 2009 |
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Quantitative approach to forensic fingerprint comparison studied
The National Institute of Justice (NIJ) has awarded researchers at Virginia Tech a two-year, $854,907 grant to develop a quantitative approach to measuring and establishing a standard for "sufficiency" of information available ...
Technology / Computer Sciences
Nov 30, 2009 |
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Friction force differences offer new means for manipulating nanotubes
(PhysOrg.com) -- Nanotubes and nanowires are promising building blocks for future integrated nanoelectronic and photonic circuits, nanosensors, interconnects and electro-mechanical nanodevices. But some fundamental ...
Nanotechnology / Nanomaterials
Sep 15, 2009 |
4 / 5 (3) |
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Bionanomachines: Proteins as resistance fighters
(PhysOrg.com) -- Friction limits the speed and efficiency of macroscopic engines. Is this also true for nanomachines? A Dresden research team used laser tweezers to measure the friction between a single motor ...
Aug 14, 2009 |
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High levels of cycling training damage triathletes' sperm
The high-intensity training undertaken by triathletes has a significant impact on the quality of their sperm, the 25th annual conference of the European Society of Human Reproduction and Embryology heard today (Monday 29 ...
Jun 29, 2009 |
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Fingerprints do not improve grip friction
Fingerprints mark us out as individuals and leave telltale signs of our presence on every object that we touch, but what are fingerprints really for? According to Roland Ennos, from the University of Manchester, ...
Jun 12, 2009 |
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